desc:     "nothing",
			ipFamily: v1.IPv4Protocol,

			service:  nil,
			expected: map[ServicePortName]*BaseServicePortInfo{},
		},
		{
			desc:     "headless service",
			ipFamily: v1.IPv4Protocol,

			service: makeTestService("ns2", "headless", func(svc *v1.Service) {
				svc.Spec.Type = v1.ServiceTypeClusterIP
				svc.Spec.ClusterIP = v1.ClusterIPNone

# new generation
if [ "x$FESS_HEAP_NEWSIZE" != "x" ]; then
    FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Xmn${FESS_HEAP_NEWSIZE}"
fi

# set to headless, just in case
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Djava.awt.headless=true"

# maximum # keep-alive connections to maintain at once
FESS_JAVA_OPTS="$FESS_JAVA_OPTS -Dhttp.maxConnections=20"

# Force the JVM to use IPv4 stack

	cases := []struct {
		name      string
		proxy     *model.Proxy
		resources []string
		request   *model.PushRequest
		nameTable []*discovery.Resource
	}{
		{
			name:      "partial push with headless endpoint update",
			proxy:     &model.Proxy{Type: model.SidecarProxy},
			request:   &model.PushRequest{Reason: model.NewReasonStats(model.HeadlessEndpointUpdate)},
			nameTable: emptyNameTable,
		},
		{

# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

#libreoffice --headless --convert-to svg src/site/xdoc/maven-deps.odg
# CLI export keeps full A3 page
# I prefer doing it by hand, limiting export to "selection" = avoids extra space

# svgo https://github.com/svg/svgo

) {
    init {
        // We depend on swing (indirectly through PSI or something), so we want to declare headless mode,
        // to avoid accidentally starting the UI thread. But, don't set it if it was set externally.
        if (System.getProperty("java.awt.headless") == null) {
            System.setProperty("java.awt.headless", "true")
        }
        setupIdeaStandaloneExecution()
    }

)

// Instance is a component that provides access to a deployed echo service.
type Instance interface {
	Caller
	Target
	resource.Resource

	// Address of the service (e.g. Kubernetes cluster IP). May be "" if headless.
	Address() string

	// Addresses of service in dualmode
	Addresses() []string

	// Restart restarts the workloads associated with this echo instance
	Restart() error

  namespace: my-namespace
spec:
  selector:
    app: my-service
  ports:
  - name: tcp-foo
    protocol: TCP
    port: 8080
    targetPort: 8080
---
# Service is mixed mode(clusterIP and headless), should generate warning.
apiVersion: v1
kind: Service
metadata:
  name: mixed-mode
  namespace: my-namespace
spec:
  clusterIP: 1.2.3.4
  selector:
    app: my-service
  ports:
  - name: tcp-foo

spec:
  type: LoadBalancer
  selector:
    app: my-service
  ports:
  - name: tcp-foo
    protocol: TCP
    port: 8080
    targetPort: 8080
---
# Service is mixed mode(clusterIP and headless), should generate warning.
apiVersion: v1
kind: Service
metadata:
  name: mixed-mode
  namespace: my-namespace
spec:
  clusterIP: None
  selector:
    app: my-service
  ports:
  - name: tcp-foo

	// Headless/StatefulSet deployments.
	NewConnectionPerRequest bool

	// ForceDNSLookup if true, the forwarder will force a DNS lookup for each individual request. This is
	// useful for any situation where DNS is used for load balancing (e.g. headless). This is ignored if
	// NewConnectionPerRequest is false or if the deployment is Headless or StatefulSet.
	ForceDNSLookup bool

            try {
                withEnv(["JAVA_HOME=${ tool "$jdkName" }",
                         "PATH+MAVEN=${ tool "$jdkName" }/bin:${tool "$mvnName"}/bin",
                         "MAVEN_OPTS=-Xms2g -Xmx4g -Djava.awt.headless=true"]) {                   
                    sh "mvn clean ${MAVEN_GOAL} -B -U -e -fae -V -Dmaven.test.failure.ignore -PversionlessMavenDist -Dmaven.repo.local=${WORK_DIR}/.repository"
                }
            } finally {